Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '663f8197296de936823ae5098a38c8595fe726756ed482789dee09e5dcd2b161' 
  AND token = 'CK0HtGkyYyZgkZ1Z+aSpr5WFUdhJXeWSIdiJmTwmlME=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}